CVE-2016-4483

Name	CVE-2016-4483
Description	The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-503-1, DSA-3593-1
NVD severity	medium
Debian Bugs	823405

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libxml2 (PTS)	stretch	2.9.4+dfsg1-2.2+deb9u2	fixed
	stretch (security)	2.9.4+dfsg1-2.2+deb9u3	fixed
	buster	2.9.4+dfsg1-7+deb10u1	fixed
	bullseye, sid	2.9.10+dfsg-6.3	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
libxml2	source	wheezy	2.8.0+dfsg1-7+wheezy6	DLA-503-1
libxml2	source	jessie	2.9.1+dfsg1-5+deb8u2	DSA-3593-1
libxml2	source	(unstable)	2.9.3+dfsg1-1.1		823405

Notes

Minor issue, only when using libxml2 using recovery mode
https://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfd (v2.9.4)
https://bugzilla.gnome.org/show_bug.cgi?id=766414